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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 441 · 40 questions
TalentJR

Remember (Digit, digit, zeros): black 0 · brown 1 · red 2 · orange 3 · yellow 4 · green 5 · blue 6 · violet 7 · grey 8 · white 9. Band 1 and band 2 = two digits; band 3 = number of zeros to add. Examples: brown-black-red = 1000 Ω; yellow-violet-brown = 470 Ω; red-red-red = 2200 Ω = 2.2 kΩ.

NameDateTime takenScore ___ / 40
  1. 1.🌈 A resistor has the colour bands yellow, yellow, black. What is its value (in ohms)?
  2. 2.🌈 A resistor has the colour bands white, white, orange. What is its value (in ohms)?
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6500 Ω resistor? (a) green-blue-red (b) blue-green-orange (c) blue-green-red (d) blue-green-brown
  4. 4.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 5 % (c) 25 % (d) 0 %
  5. 5.🌈 A resistor has the colour bands violet, brown, brown. What is its value (in ohms)?
  6. 6.🌈 Which band is read first on a resistor? (a) any band (b) the widest gap (c) the one nearest an end (d) the gold band
  7. 7.🌈 A resistor has the colour bands brown, red, orange. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 A resistor has the colour bands orange, black, brown. What is its value (in ohms)?
  9. 9.🌈 In the resistor colour code, which number does white stand for?
  10. 10.🌈 A resistor has the colour bands white, yellow, red. What is its value (in ohms)?
  11. 11.🌈 A resistor has the colour bands brown, violet, red. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 A resistor has the colour bands red, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 A resistor has the colour bands red, red, yellow. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 A resistor has the colour bands orange, red, brown. What is its value (in ohms)?
  15. 15.🌈 In the resistor colour code, which number does violet stand for?
  16. 16.🌈 A resistor has the colour bands orange, green, red. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 A resistor has the colour bands green, orange, red. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 In the resistor colour code, which number does yellow stand for?
  19. 19.🌈 A resistor has the colour bands violet, brown, orange. What is its value (in ohms)?
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 27 Ω resistor? (a) violet-red-black (b) red-violet-brown (c) orange-violet-black (d) red-violet-black
  21. 21.🌈 A resistor has the colour bands brown, white, orange. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 A resistor has the colour bands white, green, orange. What is its value (in ohms)?
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1300 Ω resistor? (a) orange-brown-red (b) brown-orange-brown (c) brown-orange-red (d) brown-orange-orange
  24. 24.🌈 A resistor has the colour bands red, blue, orange. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 A resistor has the colour bands orange, brown, red. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 610 Ω resistor? (a) brown-blue-brown (b) blue-brown-black (c) blue-brown-red (d) blue-brown-brown
  27. 27.🌈 In the resistor colour code, which number does brown stand for?
  28. 28.🌈 A resistor has the colour bands yellow, black, red. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands white, orange, black. What is its value (in ohms)?
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 770 Ω resistor? (a) violet-violet-red (b) violet-violet-black (c) violet-grey-brown (d) violet-violet-brown
  31. 31.🌈 A resistor has the colour bands grey, blue, brown. What is its value (in ohms)?
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 52000 Ω resistor? (a) green-red-orange (b) green-red-red (c) green-red-yellow (d) red-green-orange
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3900 Ω resistor? (a) orange-white-brown (b) orange-white-red (c) orange-white-orange (d) white-orange-red
  34. 34.🌈 In the resistor colour code, which number does green stand for?
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7600 Ω resistor? (a) violet-blue-red (b) violet-blue-orange (c) blue-violet-red (d) violet-blue-brown
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 740 Ω resistor? (a) yellow-violet-brown (b) violet-yellow-red (c) violet-yellow-black (d) violet-yellow-brown
  37. 37.🌈 A resistor has the colour bands white, orange, orange. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 In the resistor colour code, which number does blue stand for?
  39. 39.🌈 A resistor has the colour bands red, blue, red. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands yellow, white, yellow. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 44
  2. 99000
  3. blue-green-red
  4. 5 %
  5. 710
  6. the one nearest an end
  7. 12
  8. 300
  9. 9
  10. 9400
  11. 1.7
  12. 210
  13. 220
  14. 320
  15. 7
  16. 3.5
  17. 5.3
  18. 4
  19. 71000
  20. red-violet-black
  21. 19
  22. 95000
  23. brown-orange-red
  24. 26
  25. 3.1
  26. blue-brown-brown
  27. 1
  28. 4
  29. 93
  30. violet-violet-brown
  31. 860
  32. green-red-orange
  33. orange-white-red
  34. 5
  35. violet-blue-red
  36. violet-yellow-brown
  37. 93
  38. 6
  39. 2600
  40. 490

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